"With these subpoenas for testimony, the joint committee is moving to a key stage of its investigation into how this abuse of government power and threat to public safety occurred.

"The people of New Jersey continue to deserve clear answers as to how this abuse was allowed to happen, and the four people we've called to testify can begin providing insight into the troubling environment that allowed something as concerning as these lane closings to happen.

"Their insight will be crucial to our reform efforts. We look forward to their cooperation and testimony."